Agitator for chain pumps



Dec. 23, 1924'.

' 1,520,195 J. B. MAYBERRY AGIIIATOR FOR CHAIN PUMPS Filed May 25 1923 5IE-MW gwmnfoz MA amzmq Patented Dec. 23, 1924.

UNITEDSJSTATES JAMES B. 'MAYBERR on'srrnnvnroa'rj LOUISIANA.

' AGITA'IOR FOR CHAIN PUMPSQ Application filed May 25, 1923.: -Seria1Nor-641,350.;

To all whom it may concern:

Be it known that I, J AMES B. MAYBERRY, a citizen of the United States,residing at Shreveport, Caddo Parish, Louisiana, have invented a certainnew and useful Improvement in Agitators for Chain Pumps, of which thefollowing is a full, clear, and exact description, such as will enableothers skilled in the art to which it appertains to make and use thesame.

The invention relates to agitating means to be used with chain bucketpumps in operations in oil wells and other deep wells. The device isintended as an attachment for use in connection with the type of bucketchains disclosed in my co-pending application, Serial No. 630,202, filedApril 6th, 1923.

The object of my invention is to provide an agitating blade which may besecured upon the chain of a deep well bucket pump and serve toautomatically keep the sand and other foreign matter stirred up insuspension so that it may be carried out of the well with the fluidbeing pumped.

Another object is to provide a weight for the lower end of a chainbucket pump for deep wells which will serve to keep the chain in propervertical alignment and serve to prevent any kinking of the chain in use.

Referring to the drawing herewith, wherein a preferred embodiment of myinvention is shown, Fig. 1 is a side elevation of my agitator; Fig. 2 isa bottom plan view; Fig. 3 is a side elevation taken at right angles tothe view shown in Fig. 1 and Fig. 4 is a transverse section on the plane4-4 of Fig. 3 showing the yoke alone.

My device comprises a blade section and I have shown this blade in theform of two flat blades 1, crossed at right angles and joined togetheras shown best in Fig. 2. The upper end of the compound blade 1 thusformed is fixed to a yoke 2 made up of two plates 3 and 4 forked attheir lower ends to include the upper end of one of the wings of theagitator and riveted, or otherwise secured, to the opposite sides of oneof the wing sections of the blade.

The upper ends of the two plates are rounded off slightly at 5 on theinner faces and a cross pin 6 through said ends furnishes a mounting fora roller'bearing sleeve 7 adapted to roll thereon.

The bucket chain 8, shown in Fig. 1 is adapted to be threaded throughthe upper end of the yoke 2 and as said chain is opmoved and down by therunning of the j chain, thus serving to agitate the sand by thereciprocating action of the sharpened lower end of the blades. This willkeep the sand and shale always in suspension in the fluid so that it maybe gathered up by the buckets on the chain and carried to the surfaceand discharged. 4

The use of this agitator will prevent the clogging of the lower end ofthe well with sand or shale and materially assist in keeping the wellclean and allow the operation of the pump for long periods.

lVhile I have shown and described one particular form of agitator itwill be obvious to one skilled in the art that the form may be varied inmany respects without departing from the spirit of my invention and I donot wish to be confined to the particular form shown further than isdone in the claims appended hereto.

Having thus described my invention, what I claim as new and desire toprotect by Letters Patent is:

1. An agitator for chain bucket pumps comprising a downwardly extendingpointed blade, a forked yoke thereon to receive said chain and a bearingin for said agitator at the upper end of sai yoke.

2. An agitator for use with chain bucket pumps in deep wells, comprisinga blade sharpened at the lower end, a yoke at the upper end to receivesaid chain, and a cross bearing above said chain having a rotatablesleeve thereon.

3. An agitator for use with chain bucket pumps, comprising a chainengaging yoke and a pointed plate thereon, said agitator adapted to rollon the links of said chain and be thereby reoiprooated through theoperation of the chain to dig up the material at the bottom of the well.

4. An agitator for use with chain bucket pumps comprising a doubleblade, two plates secured to the upper end thereof and a cross pinthrough the upper end of said plates.

5. An agitator for use With chain bucket pumps, comprising an agitatingblade, and means to secure said blade to said chain whereby the runningof the chain there- 5 through will reciprocate said blade to break upand agitate the sand and other solid material at the bottom of the Well.

6. In combination with a bucket chain for deep Well operations, a yoke,a downwardly extending agitator suspended on said chain 10 to ride onthe links thereof and to be reciprocated thereby, for the purposedescribed.

In testimony whereof, I hereunto afliX my signature this 21st day ofMay, A. D. 1923.

JAMES B. MAYBERRY.

